Milliliter and liter for a liquid.
For a solid object, I would say meter and cubic centimeter
I believe that the areas are tropical and polar zones.
Answer:
Signposts that determine the fate of cells.
Explanation:
Embryos for humans and other animals often look alike at certain developmental stages because they share ancient genes. This expression means that a more advanced organism, like humans, will resemble less advanced species during it's development stages.
